Research On The Influence Of The Number Of Grooves On The Formation And Damage Target Of MEFP

The MEFP warhead has the advantages of keeping the EFP warhead,and makes up the deficiency of the damage probability.The number of the MEFP in the shape of the propellant is formed by changing the number of the groove number,which can improve the hit probability.The main research contents are as follows:The main research contents are as follows:First,on the grooved MEEP molding process were studied.The results show that: the moment trough MEFP molding process mainly includes four processes: flip closed,cross flying,crushed fracture,the formation of four processes of the bullet pill;three to eight groove carved slot of the MEFP,forming after the number of bullet pill and engraved with the same number of slot,nine to twenty groove carved slot of the MEFP,forming the bullet pill to reduce the number of;shell thickness and projectile diameter ratio and charge ratio of length to diameter moment trough MEFP forming the greatest impact.Second,the damage of MEFP thick 45# steel target plate process is studied.The research shows that the groove type MEFP damage 45# steel target plate process group has two stages: open pit stage,penetrating stage;groove type MEFP damage of different thickness 45# steel target plate,thickness,groove number is more than the groove type MEFP damage target plate area,groove MEFP damage 45# steel target plate,the groove number is smaller than the groove MEFP EFP damage target plate area is larger.When the target plate and groove type MEFP of the axis direction of the axis direction is larger,the groove of the groove number of groove MEFP damage target plate area.Third,the damage to the semi infinite thickness concrete target is studied.The research shows that: with the increase of the number of MEFP,the depth of the damage target plate is increased and then decreased,and the MEFP damage concrete target plate,with the increase of penetration depth,the remaining speed of the bullet is sharply reduced.